<template>
    <div class="base-b">
        <div>我是B组件（发布方）</div>
        <button @click="clickSend">发布通知</button>
    </div>
</template>

<script>
import Bus from '../utils/EventBus'
export default {
    methods: {
        clickSend() {
            Bus.$emit('sendMsg','今天天气很不错，适合出去玩')
        }
    },
}
</script>

<style scoped>
.base-b {
    width: 200px;
    height: 200px;
    border: 3px solid #000;
    border-radius: 3px;
    margin: 10px;
}
</style>